Elon Musk and his merry band of executive vice presidents had plenty of advice for the mining and metals industry at the company’s Battery Day event in September, where the road map to a $25,000 Tesla was laid out. How easy it is to mine lithium (just add salt), just how much … Συνεχίστε να διαβάζετε το All the mines Tesla needs to build 20 million cars a year!.